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/* gui_util.c - GUI utility functions. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/gui.h>
#include <grub/gui_string_util.h>
struct find_by_id_state
{
const char *match_id;
grub_gui_component_callback match_callback;
void *match_userdata;
};
static void
find_by_id_recursively (grub_gui_component_t component, void *userdata)
{
struct find_by_id_state *state;
const char *id;
state = (struct find_by_id_state *) userdata;
id = component->ops->get_id (component);
if (id && grub_strcmp (id, state->match_id) == 0)
state->match_callback (component, state->match_userdata);
if (component->ops->is_instance (component, "container"))
{
grub_gui_container_t container;
container = (grub_gui_container_t) component;
container->ops->iterate_children (container,
find_by_id_recursively,
state);
}
}
void
grub_gui_find_by_id (grub_gui_component_t root,
const char *id,
grub_gui_component_callback cb,
void *userdata)
{
struct find_by_id_state state;
state.match_id = id;
state.match_callback = cb;
state.match_userdata = userdata;
find_by_id_recursively (root, &state);
}
struct iterate_recursively_state
{
grub_gui_component_callback callback;
void *userdata;
};
static
void iterate_recursively_cb (grub_gui_component_t component, void *userdata)
{
struct iterate_recursively_state *state;
state = (struct iterate_recursively_state *) userdata;
state->callback (component, state->userdata);
if (component->ops->is_instance (component, "container"))
{
grub_gui_container_t container;
container = (grub_gui_container_t) component;
container->ops->iterate_children (container,
iterate_recursively_cb,
state);
}
}
void
grub_gui_iterate_recursively (grub_gui_component_t root,
grub_gui_component_callback cb,
void *userdata)
{
struct iterate_recursively_state state;
state.callback = cb;
state.userdata = userdata;
iterate_recursively_cb (root, &state);
}
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